40780625

素因数分解:

$5^4\times {\mathrm{71}}^1\times {\mathrm{919}}^1$

素因数の和:1010

約数の個数: 20

約数和(自身を含む): 51733440

約数和(自身を除く): 10952815

約数列:

[1, 5, 25, 71, 125, 355, 625, 919, 1775, 4595, 8875, 22975, 44375, 65249, 114875, 326245, 574375, 1631225, 8156125, 40780625]

約数ペア:

[(1, 40780625), (5, 8156125), (25, 1631225), (71, 574375), (125, 326245), (355, 114875), (625, 65249), (919, 44375), (1775, 22975), (4595, 8875)]